Title

Effect of interior shade on window solar gain

Abstract

The shading coefficient (SC) is a single-number indicator used to characterize the solar radiant heat gain through fenestrations used in buildings. The shading coefficient is defined in terms of the solar heat gain factor (SHGF), the fraction of incident solar irradiance that is transmitted into the room as heat. The SC is the ratio of the SHGF of the fenestration in question to that of a standard reference glazing under specified standard conditions. The standard conditions include normal incidence and no interior shading. This paper develops an expression for modifying the shading coefficient to include the effects of interior shading when the shade is a simple, freestanding vertical sheet. It is shown that such interior shading can strongly affect the shading coefficient of the window/window shade combination.

Publication Date

12-1-1993

Publication Title

ASHRAE Transactions

Volume

99

Issue

pt 2

Number of Pages

565-570

Document Type

Article

Identifier

scopus

Socpus ID

0027874252 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0027874252

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